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baherus [9]
3 years ago
6

What are some examples of chemical changes?

Chemistry
1 answer:
Oliga [24]3 years ago
6 0
Ice melting like with global warming
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H₂SO₄ is considered to be
uranmaximum [27]

Answer:

sulfuric acid

Explanation:

a strong acid that soluble in water.

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3 years ago
A chemist titrates 50.0 mL of a 0.1333 M benzoic acid (HCH,CO2) solution with 0.2560M NaOH solution at 25 °C. Calculate the pH a
umka2103 [35]
Oh okie gosh lol I don’t know what
3 0
3 years ago
What type of reaction is FeS + 2 HCl > FeCl2 + H2S?
schepotkina [342]
Double replacement means a reaction that includes two molecules that each have two different ions. After the reaction, the ions pairs have switched, which is what is shown in the above equation. A single replacement would be a very simple reactions such as: 2Fe(II)S + Ov2^2- -> 2Fe(II)O + 2S^2- A decomposition reaction would be shown as this: 2NaCl -(dissolve in water)> 2Na^+ + Clv2^- A synthesis reaction could be the exact opposite: 2Na^1+ + Clv2^1- -> 2NaCl
8 0
3 years ago
How many moles of Pb are in 4.71 × 10^21 Pb atoms?
miskamm [114]

Answer:

0.00782 mol Pb

Explanation:

There are always 6.02 × 10²³ atoms in 1 mole of an element.

4.71 × 10²¹ atoms Pb × (1 mol Pb ÷ 6.02 × 10²³ atoms) = 0.00782 mol Pb

4 0
4 years ago
How is the formation of covalent bonds similar to kids sharing markers? how is it different? if possible, discuss your answer wi
vagabundo [1.1K]
A covalent bond means shared electrons between atoms. This is similar to kids sharing markers because the markers (electrons) are being shared between the kids (atoms). Covalent bonds are different than this metaphor because 1) the electrons are constantly moving about while the kids can steal and keep the markers and 2) the electrons and atoms are physically smaller
5 0
3 years ago
Read 2 more answers
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